Weld Sealant 433 is a single component anaerobic penetrating adhesive and sealant. Utilizing capillary action, Weld Sealant 433 penetrates and seals porosities and cracks as large as 0.127 mm. Once confined away from air Weld Sealant 433 cures to a thermoset plastic. Sealant remaining on the surface will not cure and can be easily wiped clear. Benefits include retention of fluids and pressures as well as corrosion and contamination elimination. Temperature resistance is up to 400°F (204°C). Weld Sealant 433 is impervious to most solvents. Welds, castings and powder metal parts can be sealed to their rupture pressure.